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39results about How to "Play an anti-stress role" patented technology
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Cable protection pipe resistant to tension and compression
InactiveCN105262017AImprove tensile propertiesPlay an anti-stress roleElectrical apparatusHigh resistanceEngineering
The invention provides a cable protection pipe resistant to tension and compression. The cable protection pipe comprises a first opening protection pipe, a second opening protection pipe and a fixing device. The first and second opening protection pipes both have a semi-circular cross section. The first opening protection tube comprises a first inner protection pipe layer and a first outer protection pipe layer. The inner side of the first outer protection pipe layer is provided around the first inner protection pipe layer with a plurality of first support cavities having a triangular cross section. Each first support cavity is provided internally with a first flexible tension resistant body. The second opening protection pipe comprises a second inner protection pipe layer and a second outer protection pipe layer. The inner side of the second outer protection pipe layer is provided around the second inner protection pipe layer with a plurality of second support cavities having a triangular cross section. Each second support cavity is provided internally with a second flexible tension resistant body. The fixing device comprises a first fixing member and a second fixing member. The invention has the advantages of simple structure, high resistance to tension and compression, fixation, firmness, and good protection effect.
Owner:合肥市易远新材料有限公司
Flexible cable
InactiveCN103730197AImprove fire resistanceCrush blockFlexible cablesFlexible conductorsChemical industryElectrical conductor
The invention discloses a flexible cable which integrates the wear-resistant function, the flame retardant function, the fire prevention function, the high temperature and low temperature resistant function, the acid and alkali resistant function, the oil and water resistant function, the tearing prevention function and the good and stable signal transmission function. The flexible cable is composed of copper core stranded conductors, an insulating layer, a packing layer, a wrapping tape layer, an armor layer and a protective sleeve layer from inside to outside. The second type of copper core conductors are adopted for the copper core stranded conductors, mica tape is wound to form the insulating layer, flame-retardant filling ropes are adopted for materials of the packing layer, the wrapping tape layer comprises a mica tape wrapped layer and a glass fiber belt wrapped layer, and 125 DEG C low-smoke halogen-free flame retardant TPU materials are adopted for materials of the protective sleeve layer. The flexible cable is suitable for being applied to industrial and mining enterprises such as electricity generation enterprises, metallurgy enterprises, electronic enterprises, automobile enterprises, petroleum enterprises, chemical industry enterprises and large-scale construction enterprises, and the flexible cable can meet the requirements for the abrasion resistance performance, the fire prevention performance and other types of performance of cables, and can be used in special environments such as high-temperature environments, low-temperature environments, acid environments, alkali environments and environments where movement exists.
Owner:ANHUI HUAXING CABLE GROUP
Metal composite plate and production method thereof
ActiveCN106891584AProtection break phenomenonHigh bonding strengthMetal layered productsNon-electric welding apparatusMetal fiberComposite plate
The invention relates to the field of metal composite materials, and discloses a metal composite plate and a production method thereof. The metal composite plate is produced through clamping and binding a foam metal fiber layer by two metal plates, wherein the foam metal layer is formed by using foam metal, fibers and a filler, the fibers are interwoven in two end surfaces of the foam metal, and at least parts of apertures of the foam metal are filled with the filler. The interlayer bonding force between each of the upper and lower metal plates and the middle layer of the metal composite plate is high.
Owner:BYD CO LTD
Cysteamine hydrochlorate composite premixed material for meat-poultry dynamiting and preparation method
InactiveCN101366452APromote growthReduce consumptionAnimal feeding stuffAccessory food factorsFeed conversion ratioOligosaccharide
The invention discloses a cysteamine hydrochlorate compound premix material for increasing the weight of meat poultry, and a method for preparing the same, wherein 10 to 30 portions of vitamin A, 3 to 10 portions of vitamin D3, 3 to 10 portions of vitamin E and one fifth to four fifths of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, 0.5 to 1.5 portions of vitamin B2, 0.003 to 0.009 portion of vitamin B12, 0.50 to 1.0 portion of folic acid and one tenth to one fifth of 50 to 800 portions of xylo-oligosaccharide are evenly mixed, and the mixtures is evenly mixed with 100 to 900 portions of cysteamine hydrochlorate clathrate, 8 to 20 portions of methionine, 5 to 30 portions of lysine, 5 to 20 portions of solid emulsifier, 2 to 10 portions of glutamine and the remained carrier xylo-oligosaccharide to prepare the premix material. The compound premix material can supplement vitamins and amino acids needed for fast growth of meat poultry, strengthen the digestion, absorption and utilization of energy and nutrient substances such as nitrogen, calcium, phosphorus, and the like, improve the carcass merit, increase the meat factor, enhance the immunity function of organism, improve the illness resistant capability and the stress resistant capability, enforce the digestion and absorption of proteins and fats, improve the number of helpful bacteria in intestinal canals, enforce the digestion and absorption of nutrient substances and improve the feed conversion rate. The cysteamine hydrochlorate compound premix material can not only increase the producibility of meat poultry but also improve the meat quality.
Owner:桦南县新曙光饲料有限公司
Metal composite plate and preparation method thereof
InactiveCN106891583AProtection break phenomenonHigh bonding strengthMetal layered productsBinding forceMetal
The invention relates to the field of metal composite materials and discloses a metal composite plate and a preparation method thereof. The metal composite plate is formed by clamping and combining two metal plates and a foam metal fiber layer, wherein the foam metal fiber layer is formed from a foam metal, first fibers, second fibers and a filler; the first fibers and the second fibers respectively penetrate through two end faces of the foam metal; and at least partial ports of the foam metal are filled by the filler. According to the metal composite plate provided by the invention, the interlayer binding force between the upper and lower metal plates and the intermediate layer is higher.
Owner:BYD CO LTD
Protection effects of Astragaloside on heart
InactiveCN104147030ASignificant effect of two-way regulationReduce and eliminate the effects of physiological functionsOrganic active ingredientsCardiovascular disorderMyocardial fiberApoptosis
The invention discloses prevention of myocardial energy metabolism disorder, myocardial mechanism damage, cardiac function disorder and heart perfusion amount caused by ischemia and ischemia reperfusion by utilization of Astragaloside (As-IV), one of main components of qishenyiqi drop pills. The main mechanism is that Astragaloside keeps the rates of ATP / ADP and ATP / AMP through inhibition of decrease of expression levels of amyocardium ATP5D protein and an mRNA caused by ischemia and ischemia reperfusion, myocardial fiber damage and myocardium cell apoptosis are inhibited, and further myocardial infarction caused by ischemia reperfusion is decreased.
Owner:TIANJIN TASLY PHARMA CO LTD
Low-voltage fireproof cable
InactiveCN109036685AGood electrical conductivityReduce eccentricityInsulated cablesPower cablesCopper wireMagnesium
A low-voltage fireproof cable is disclosed, including jackets, the sheath is sleeved on the outer wall of the protective layer, the protective layer is sleeved on the outer wall of the copper core, Afill layer is filled between the copper core and the protective layer, The copper core comprises a thick copper wire and a copper wire, wherein the copper wire is provided with a plurality of strandsand is wound and adhered on the outer wall of the thick copper wire; the lower end of the sheath is provided with a tangential structure; the tangential structure comprises a cutting knife A and a cutting knife B; and a baffle plate is arranged above both outer ends of the cutting knife A and the cutting knife B. As that fire-retardant paint is arrange, Magnesium oxide powder, protective layer, filling layer, insulating sleeve and tangential wire structure solve the problems of high temperature caused by fire when the cable is in use, melting of the cable causes the normal use of the cable power-off image cable, poor conductor performance in the cable, poor compression resistance when the cable is in use, and difficult peeling of the copper core when the cable is connected.
Owner:ANHUI STAR CABLE
Method for reducing dark vein rate of eggs
PendingCN109480124AReduce dark linesReduce qualityFood processingAnimal feeding stuffVeinAnimal science
The invention relates to a method for reducing the dark vein rate of eggs. The method comprises the following steps: respectively adding the following additive ingredients into daily ration feed of layers in percentage by weight: 0.01-0.015 percent of vitamins, 0.5-1 percent of probiotics and 0.05-0.1 percent of amino acid; and uniformly stirring. According to the method, a specific content of compound vitamins, compound probiotics and compound amino acids into layer feed, the dark vein rate of eggs can be remarkably improved, the commercial value of eggs and benefit of farmers can be increased while the egg quality is promoted.
Owner:POULTRY INST SHANDONG ACADEMY OF AGRI SCI
Undersea compression-resistant and stretch-resistant cable
InactiveCN107799213AElasticPlay an anti-stress roleClimate change adaptationSubmarine cablesStructural engineeringCopper
The invention discloses an undersea compression-resistant and stretch-resistant cable. The undersea compression-resistant and stretch-resistant cable comprises a waterproof sleeve; four arc-shaped grooves are formed in the inner wall of the waterproof sleeve in the circumferential direction; arc-shaped rods are arranged in the four arc-shaped grooves respectively; the two ends of the arc-shaped rods are fixedly connected with the inner walls of the corresponding arc-shaped grooves; each arc-shaped rod is sleeved with two sliding blocks; the two sliding blocks are both glidingly connected withthe corresponding arc-shaped rod; grooves are formed in the side walls of the two sliding blocks respectively; the inner walls of the grooves are rotationally connected with connecting rods; an insulating sleeve is arranged in the waterproof sleeve; four rubber rods corresponding to the positions of the arc-shaped grooves are arranged on the side wall of the insulating sleeve in the circumferential direction; one ends, far from the inner walls of the grooves, of the two connecting rods are both rotationally connected with one ends, far form the insulating sleeve, of the rubber rods; a placement groove is formed in the insulating sleeve; copper sheets are arranged in the placement groove; and four strands of cables are arranged in the insulating sleeve. The undersea compression-resistant and stretch-resistant cable is reasonable in design and simple in operation; and compression resistance requirements of the cable in the transverse direction and the longitudinal direction both can be satisfied, so that the undersea cable can resist any safety threatens caused by underwater subterranean flow.
Owner:ANHUI MINGDU ELECTRIC WIRE
Feed for improving egg laying performance of egg laying ducks
InactiveCN109601749APromote digestion and absorptionImprove disease resistanceFood processingAnimal feeding stuffAnimal scienceVitamin C
The present invention relates to a feed for domestic poultry and discloses a feed for improving egg laying performance of egg laying ducks. The feed is composed of a main material part and a premix part, and comprises chrysanthemum powder, honeysuckle stems, radix sophorae subprostratae, herba houttuyniae, wheat, soybean meal, American DDGS, domestic DDGS, rapeseed meal, brewer's grains, stone powder, calcium hydrogen phosphate and a premix. The premix comprises the following components: 0.5 part of 98% lysine, 0.5 part of choline, 1.5 parts of baking soda, 0.5 part of methionine, 3 parts of edible salt, 0.1 part of duck egg multi-vitamin, 1 part of high-selenium poultry mineral, 2 parts of gypsum powder, 1 part of anhydrous betaine, 0.15 part of vitamin E, 0.1 part of a bacillus preparation, 0.05 part of vitamin C, 0.2 part of a wheat special enzyme, 0.1 part of pellet phytase and 1.1 parts of a carrier. The feed can greatly reduce feeding cost of the egg laying ducks and improves economic benefits of egg laying duck breeding. The feed does not use corn, the enzyme preparation and micro-organism preparation are added, balance functions of amino acids are combined, and the egg laying performance of the egg laying ducks can be maintained and even improved.
Owner:赵露曦
Novel thin compressive overtemperature protection element structure
ActiveCN103531402APlay an anti-stress rolePromote meltingHeating/cooling contact switchesEmergency protective devicesTinningAlloy
The invention discloses a novel thin compressive overtemperature protection element structure which comprises an insulating slot body and a metal area, wherein the operating temperature of the structure is 70-120 DEG C; the upper surface and the lower surface of the insulating slot body are in symmetric structures, and are provided with periphery bulges; low-lying areas are formed in the middles of the upper surface and the lower surface; two discontinuous metal areas are arranged in each low-lying area; the two metal areas of the upper surface are connected by a low-melting-point alloy; the low-melting-point alloy is coated with a fluxing agent; tin coatings are arranged on the metal areas; the metal areas of the upper surface and the lower surface are communicated by blind holes of the insulating slot body; the total thickness of the tin coatings and the low-melting-point alloy coated with the fluxing agent is not greater than the depth of the low-lying areas of the insulating slot body; the upper surface of the insulating slot body is covered with an insulating layer; the insulating layer covers the tin coatings and the low-melting-point alloy coated with the fluxing agent on the insulating slot body to form a fuse; and the thickness of the fuse is less than 0.7mm. The structure is ultrathin and high in compressive capacity.
Owner:SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD
Voltage-withstanding flexible liquid cooling fin
A voltage-withstanding flexible liquid cooling fin comprises a cooling fin main body and an aluminum tube disposed on the cooling fin main body and as a water inlet / outlet, the cooling fin main body is composed of two outer aluminum sheets and a middle rubber sheet located between the two outer aluminum sheets, the semicircular structures of the two outer aluminum sheets are oppositely connected to form a channel, the flat sheet structures of the two outer aluminum sheets and the flow channel gap of the middle rubber sheet are oppositely connected to form a liquid channel; the aluminum tube isfixed in the liquid channel and is provided with a gap, the head end / tail end of the liquid channel are collected to the channel, and the head end / tail end of the liquid channel both correspond to the gap of the aluminum tube, and the middle section of the aluminum tube is provided with a blocking piece configured to block the water inlet and the water outlet. The voltage-withstanding flexible liquid cooling fin can be directly put at the internal portion of the battery pack to increase and decrease the temperature of the battery pack, and is simple and reliable in structure, small in size, good in toughness and good in voltage-withstanding effect.
Owner:骆驼集团武汉光谷研发中心有限公司
Macroporous cement concrete capable of adsorbing carbon oxide and preparation method of macroporous cement concrete
InactiveCN105461266AImprove air purification efficiencyHigh compressive strengthCement productionSodium bicarbonateAdhesive
The invention provides macroporous cement concrete capable of adsorbing carbon oxide and a preparation method of the macroporous cement concrete. The macroporous cement concrete comprises cement and a coarse aggregate and further comprises stone powder or stone ballast, a geopolymer adhesive, a water reducer and water, wherein the stone powder or stone ballast is idocrase and / or pyroxene, or a mixture of idocrase and / or pyroxene and qingheiite. The preparation method comprises the following steps: stirring stone powder or stone ballast, water of 10% designed weight and sodium bicarbonate for 30s according to proportion; then adding coarse aggregate, qingheiite and water of 40% designed weight, uniformly mixing and stirring for 2 min; finally, adding cement, a geopolymer adhesive, a water reducer and the rest water of 50% designed weight, and stirring for about 2 min to obtain a cement concrete mixture. Carbon oxides and sulfides in air enter from pores of the macroporous cement concrete to react with idocrase and pyroxene so as to generate calcium salt, magnesium salt and other solid particles, and carbon oxides and sulfides are adsorbed and sealed up for safekeeping.
Owner:CHANGAN UNIV
A low-voltage soft power cable for naval ships
InactiveCN109036670AGood physical and mechanical propertiesHigh tensile strengthPower cablesFlexible cablesPower cableElectrical conductor
A low-voltage soft power cable for naval ships including jackets, the protective sleeve is sleeved on the outer wall of the sealing sleeve gasket, the sealing sleeve gasket is mounted on the outer wall of the protective layer, the copper core stranded conductor is arranged inside the protective layer, An insulating layer is sleeved on the outer wall of the copper core stranded conductor, a connector is installed at the front end of the sheath, a groove is arranged at the front end middle part of the connector, the tail end of the groove is abutted with the front end of the conductive block, anexpansion spring is installed at the center of the inner bottom surface of the conductive block, and an abutment plate is installed at the front end of the expansion spring. By arranging the sheath,The filling layer, anti-slip grain, sealing sleeve, protective layer, connecting piece and sealing ring, the problems of short service life, poor compression resistance, extrusion damage to stranded conductor of copper core, unstable grip of water on cable surface, slip off of hand, inconvenient connection of cable and unsafe use of connecting piece are solved.
Owner:ANHUI STAR CABLE
Cable connecting device with firm connection
ActiveCN114361824AFirmly connectedEasy to holdElectric connection structural associationsWind energy generationStructural engineeringElectric cables
The invention relates to the technical field of cable connection, in particular to a firm-connection cable connecting device which comprises a fixing shell, connecting mechanisms are installed in the two ends of the fixing shell, two protection mechanisms are installed on the fixing shell, two closing mechanisms are installed on the fixing shell, and abutting mechanisms are installed on the closing mechanisms. Two groups of locking mechanisms are mounted on the fixed shell; through cooperative installation of the connecting mechanism and the fixing shell, two cables can be conveniently clamped and connected, and the cables are firmly connected and are not easy to loosen. Through the cooperation of the protection mechanism and the connection mechanism, the connection mechanism is not easy to loosen and clamp and fasten, through the cooperation of the closing mechanism and the abutting mechanism, the cable can be wound on the fixing shell in a J shape, the anti-pulling effect is achieved, the cable connection part is broken and slipped by reducing the pulling force, and the service life of the cable is prolonged. The importance of the locking mechanism is beneficial to locking protection of the closing mechanism, and cable loosening and breaking caused by opening of the closing mechanism are prevented.
Owner:徐州华隆热电有限公司
High-strength fully-shielded crosslinked polyethylene insulated PVC sheath power cable
InactiveCN108682507AImprove shielding effectPlay an anti-stress rolePower cables with screens/conductive layersInsulated cablesFiberComposite film
The invention discloses a high-strength fully-shielded crosslinked polyethylene insulated PVC sheath power cable, the power cable includes a skeleton, the skeleton is composed of seven skeletons withcross sections being orthohexagonal, wherein six orthohexagonal skeletons are distributed on six sides of the orthohexagonal skeleton in the middle, the seven orthohexagonal skeletons are in an integrated structure, a compression-resistant filling layer is filled inside the orthohexagonal skeleton in the middle, conductors are distributed inside the other six orthohexagonal skeletons, and an outerside of each conductor is wrapped by a polyethylene insulating layer and an aluminum plastic composite film shielding layer in sequence, and an outer side of the skeleton is wrapped by a zinc-coatedsteel wire braided shielding layer, a halogen-free glass fiber belting layer, a ceramic fiber thermal insulation braided layer and a PVC outer sheath in sequence. The skeleton braided with copper wires can play a role of compression resistance, can also increase the shielding performance of the cable, is not easy to damage in the use process and has a good thermal insulation effect.
Owner:ANHUI HUITENG INTELLIGENT TRANSPORTATION TECH CO LTD
Metal composite plate and preparation method thereof
InactiveCN106891585AProtection break phenomenonHigh bonding strengthLaminationLamination apparatusMetal fiberNetwork structure
The invention relates to the field of metal composite materials and discloses a metal composite plate and a preparation method thereof. The metal composite plate is formed by clamping and combining two metal plates and a foam metal fiber layer, wherein the foam metal fiber layer is formed from a foam metal, first fibers, second fibers, third fibers and a filler; the first fibers penetrate through two end faces of the foam metal in a length direction; the second fibers penetrate through two end faces of the foam metal in a width direction; the third fibers penetrate through two end faces of the foam metal in a thickness direction; the first fibers, the second fibers and the third fibers intersect to form a three-dimensional network structure; and at least partial ports of the foam metal are filled by the filler. According to the metal composite plate provided by the invention, the interlayer binding force between the upper and lower metal plates and the intermediate layer is higher.
Owner:BYD CO LTD
A hatching and capturing device for batch production of hatching golden cicada larvae
The invention provides a hatching and catching device for hatching golden cicada larvae in batch production. A storage cavity for annual cicada larvae is provided between the surface and the inner wall of the storage case, an equipment storage cavity is provided between the upper surface of the support partition and the inner wall of the storage case, and a panel vent is provided on the surface of the support partition to store The shell vent is provided on the surface of the shell, which relates to the field of food materials. The mass-produced hatching and trapping device for hatching golden cicada larvae is equipped with a mesh isolation mechanism, which can prevent golden cicadas from climbing out of a long distance on the one hand, which is convenient for management of golden cicadas, and on the other hand can isolate external birds and other natural enemies from invading golden cicadas. Thereby effectively solved the problem that the management and maintenance of the general cicada raising device is inconvenient, inconvenient for manual intervention in mass production, and difficult for artificial cultivation.
Owner:林少忠
Double-bearing cross beam bearing pedestal of oil pumping unit
InactiveCN113898674AExtended service lifeConvenient detachable installationConduits/junctionsBearing unit rigid supportEngineeringEquipment use
Owner:响水县瑞丰重型轴承座制造有限公司
Copper core foaming insulation polyurethane sheath flexible cable
ActiveCN112820453AImprove structural strengthWill not affect normal useClimate change adaptationFlexible cablesFiberCarbon fibers
The invention discloses a copper core foaming insulation polyurethane sheath flexible cable, and relates to the technical field of sheath flexible cables, the copper core foaming insulation polyurethane sheath flexible cable comprises a cable core, a foaming layer and a positioning mechanism, copper core wires are arranged in the cable core, a first filling layer is arranged between the copper core wires, an inner wrapping layer is arranged on the outer side of the cable core, the flexible rubber strips are arranged in the inner wrapping layer, the second filling layer is arranged between the flexible rubber strips, the compression-resistant layer is arranged on the outer side of the inner wrapping layer, the supporting strips are fixed in the compression-resistant layer, the carbon fiber belt is arranged on the outer side of the compression-resistant layer, and the foaming layer is arranged on the outer side of the carbon fiber belt. The cable has the advantages that the cable is provided with the inner wrapping layer, the outer side of the cable core is wrapped by the inner wrapping layer, the flexible rubber strips are annularly and evenly distributed in the inner wrapping layer, the structural strength of the inner wrapping layer can be enhanced due to the arrangement of the flexible rubber strips, and the flexible rubber strips which are annularly and evenly distributed can play a role in pressure resistance.
Owner:JIANGSU HENGTONG WIRE & CABLE TECH
Composite plastic plate, preparation method, template and shaping method
ActiveCN110397265BImprove turnaround timesHydrophobicSynthetic resin layered productsFlat articlesStress concentrationMesh reinforcement
The invention provides a composite plastic plate, a preparation method, a template and a shaping method, and belongs to the technical field of construction mold engineering. The invention can realize the preparation of the composite plastic plate and the shaping of the composite plastic formwork, contact the concrete through the plastic surface layer, enhance the tensile performance through the first fiber layer and the second fiber layer, and enhance the tensile performance through the mesh reinforcement layer and shear performance, reduce and avoid mold expansion or local swelling caused by the heat and expansion of concrete; and when bending is required, after cutting the reinforcing ribs, it can be easily bent through the bending groove set at the reinforced base It can form a curved surface or a corner shape without splicing, and there is no seam; when no bending is required, the reinforcing rib can avoid the stress concentration at the bending groove, thereby avoiding local deformation; at the same time, the reinforced layer of mesh reinforcement and the plastic surface The layer is a layered structure, and the materials of the plastic surface layer and the mesh reinforcement layer can be different, which is beneficial to saving resources and reducing costs.
Owner:XINGTAI POWER SUPPLY +2
Improved dual-layer metal hose for petrochemical engineering
PendingCN109386672AHigh strengthGood anti-stress effectThermal insulationCorrosion preventionPetrochemicalPetroleum
The invention discloses an improved dual-layer metal hose for petrochemical engineering. The improved dual-layer metal hose comprises a metal bellow and a net cover, the net cover fixedly sleeves thesurface of the metal bellow, end rings are fixedly installed at the two ends of the metal bellow and fixedly connected with one end of a jointing pipe, a connecting flange is fixedly installed at theother end of the jointing pipe, and four installing holes are fixedly formed in the surface of the connecting flange. According to the improved dual-layer metal hose for petrochemical engineering, through the arrangement of the dual-layer structures of the metal bellow and the net cover, the net cover can share static loads of the metal hose in the axial direction and the radial direction, and itcan also be guaranteed that the metal hose safely and reliably works on the condition that fluid flows along a pipeline and generates a pulsation effect; meanwhile, the net cover can guarantee that the corrugated part of the hose does not directly suffer from mechanical damage in the aspects of relative friction, impact and the like, and the strength of the metal hose is improved; through the arrangement of a pressure resistance ring, the pressure resistance effect can be well achieved, and the situation that the use of the metal hose is influenced when the metal hose is pressurized and deformed.
Owner:JIANGSU HONGYUAN PIPES
Earthquake protection devices and support systems for subway tunnels
ActiveCN111425225BReduce the risk of Y-direction tension and compression damageReduce stress burdenUnderground chambersNon-rotating vibration suppressionSupporting systemSeismic protection
The invention provides an earthquake protection device applied to subway tunnels and a subway tunnel support system, belonging to the technical field of tunnel protection. The earthquake protection device applied to the subway tunnel includes a main buffer, a secondary buffer and a force transmission mechanism; the main buffer is used to connect the primary lining and the secondary lining of the tunnel; the secondary buffer has a fixed end and a stress end, and the fixed end and the main buffer The side wall of the device is fixedly connected; the force transmission mechanism is used to connect the primary lining and / or the secondary lining and the force-bearing end of the secondary buffer, so as to transfer part of the stress between the primary lining and the secondary lining to the secondary buffer, reducing the main The stress on the buffer. The invention also provides a subway tunnel supporting system. The earthquake protection device and subway tunnel support system applied to subway tunnels provided by the present invention are different from the previous protection concept, and the inner and outer linings are flexibly separated, and at the same time, the stress burden of the main buffer is effectively reduced, and the occurrence of earthquakes in the tunnel is reduced. The risk of Y-direction tension and compression damage.
Owner:SHIJIAZHUANG TIEDAO UNIV
A cable with high compression resistance
ActiveCN111768907BAvoid deformationPlay an anti-stress roleInsulated cablesInsulated conductorsCompressive resistancePower cable
The invention discloses a cable with high compression resistance function, which belongs to the technical field of power cables, and comprises a cable core main body, a functional layer, an armor layer and an outer sheath arranged sequentially from the inside to the outside, and the cable core main body includes a wire core , inner protective layer and filling materials; between the inner protective layer and the functional layer, the first anti-compression layer, the second anti-compression layer, the third anti-compression layer and the fourth anti-compression layer are arranged in sequence from the outside to the inside, the first anti-compression layer The lamination layer includes a plurality of first compression units distributed in a ring, and the first compression unit includes a large arc plate and a small arc plate opposite to each other in the radial direction of the cable, and is connected between the large arc plate and the small arc plate. The two ends of the small arc-shaped plate are in contact with the two sides of the corresponding large arc-shaped plate, and the corresponding end sides of every two adjacent large arc-shaped plates are in conflict. The present invention has good compressive capacity and can realize comprehensive compressive resistance to cables, thereby helping to prevent cable short-circuit faults caused by partial compression of cables.
Owner:ANHUI LINGYU CABLE TECH +1
Cable capable of protecting wire core
ActiveCN110580979AAvoid squeezingHigh hardnessInsulated cablesInsulated conductorsEngineeringOxygen barrier
The invention relates to the technical field of cables, in particular discloses a cable capable of protecting a wire core. The cable comprises a cable outer cover layer, a filler and a cable core. Anoxygen barrier layer is arranged on the inner side of the cable outer cover layer. The cable core is arranged in the cavity on the inner side of the oxygen barrier layer. The cable core comprises an insulating layer, a shielding layer and a cable conductor from outside to inside. More than one air bag is arranged in the cavity on the inner side of the oxygen barrier layer along the axial directionof the cable. The bottom of the air bag is fixed on the inner bottom of the oxygen barrier layer. A support rind is fixed on the outer side wall of the air bag, and the cable core penetrates throughthe support ring. The cavity of the oxygen barrier layer outside the air bag and the support ring is filled with the filler. The purpose of the cable is to solve the problem that the cable core is damaged due to extrusion.
Owner:扬州振亚线缆有限公司
A gas sampling and anti-blocking device in goaf of coal mine
ActiveCN112013190BReduce stress concentrationPlay an anti-stress roleWithdrawing sample devicesPipe elementsMining engineeringStructural engineering
The invention discloses a gas sampling and anti-blocking device in a coal mine goaf, comprising: a rigid sleeve; a pressure dividing head, which is a cone structure, and the bottom surface of the cone is fixedly connected with the top of the rigid sleeve; a plurality of air intake elements , the air inlet of each air intake element is opposite to the side wall of the rigid sleeve, and each air intake element is fixed on the side wall of the rigid sleeve and communicates with the inside of the rigid sleeve. The air intake element enters the inside of the rigid casing; the side of the air intake element is inclined downward with an angle, and when the coal block falls from above, it will fall down the slope; the invention provides a gas sampling and anti-blocking device for goafs in coal mines , used in the goaf tube monitoring system, when the tube is laid in the goaf, the anti-blocking device is installed at the end of the tube, which can increase the compression resistance and anti-destruction performance of the tube, and prevent the tube from being blocked. Improve the pumping effect of the beam tube.
Owner:NORTH CHINA INST OF SCI & TECH
Formula and preparation method of special synergist for soil improvement
PendingCN113185356ASimple structureImprove element systemCalcareous fertilisersMagnesium fertilisersFermentationAmino acid
The invention discloses a formula and a preparation method of a special synergist for soil improvement. The formula comprises the following raw materials in percentage by weight: 1-6% of phosphorite, 2-8% of magnesium silicate mineral, 4-9% of potassium sulfate, 5-10% of compound amino acid, 4-9% of urea, 2-6% of enzyme microorganisms, 1-8% of urea formaldehyde, 3-9% of metalloproteinase, 13-18% of humic acid, 14-20% of lime,11-20% of crop straw, 14-22% of chicken manure, 0.2-2% of biological agent, 0.1-1% of urease inhibitor, 0.2-1% of ammoniastabilizer, 0.4-0.8% of DCPTA, 0.1-0.2% of hydrogen peroxide silver ion solution, and 0.2-0.6% of sepiolite. According to the formula of the special synergist for soil improvement, the metalloproteinase is added, the metalloproteinase contains long-chain protease and an anionic surfactant, nitrogen release is controlled, water-soluble phosphorus fixation is inhibited, microelements are collected, the validity period of the synergist is prolonged, the synergistic effect is remarkably improved, and the polypeptide component in the metalloproteinase can play roles in rooting, root nourishing and root strengthening. The enzyme microorganisms are added and are beneficial to fermentation and decomposition of organic materials, and soil is helped to decay crop residues in the last season.
Owner:镇江迪艾生物科技有限公司
Dense type steel wire wound silicone hose
InactiveCN106838492AImprove tensile propertiesExtended service lifeFlexible pipesSelf-healing materialAdhesive
A dense steel wire winding silicone hose relates to the technical field of hoses, in particular to a dense steel wire winding silicone hose. The object of the present invention is to provide a dense steel wire wound silicone hose with strong stability and good tensile performance. The invention provides a dense steel wire wound silicone hose, which is characterized in that: an inner rubber layer is arranged inside, an air cushion layer is arranged outside the inner rubber layer, and the air cushion layer and the inner rubber layer are connected by glue; A middle rubber layer is provided, and a steel wire braid is intertwined outside the middle rubber layer; an outer rubber layer is arranged outside the steel wire braid, an armor layer is arranged outside the outer rubber layer, and a self-healing material is arranged between the outer rubber layer and the armor layer.
Owner:SHENYANG SAIYA RUBBER PRODS
A kind of macroporous cement concrete capable of absorbing carbon dioxide and its preparation method
InactiveCN105461266BImprove air purification efficiencyHigh compressive strengthCement productionSodium bicarbonateMagnesium salt
The invention provides macroporous cement concrete capable of adsorbing carbon oxide and a preparation method of the macroporous cement concrete. The macroporous cement concrete comprises cement and a coarse aggregate and further comprises stone powder or stone ballast, a geopolymer adhesive, a water reducer and water, wherein the stone powder or stone ballast is idocrase and / or pyroxene, or a mixture of idocrase and / or pyroxene and qingheiite. The preparation method comprises the following steps: stirring stone powder or stone ballast, water of 10% designed weight and sodium bicarbonate for 30s according to proportion; then adding coarse aggregate, qingheiite and water of 40% designed weight, uniformly mixing and stirring for 2 min; finally, adding cement, a geopolymer adhesive, a water reducer and the rest water of 50% designed weight, and stirring for about 2 min to obtain a cement concrete mixture. Carbon oxides and sulfides in air enter from pores of the macroporous cement concrete to react with idocrase and pyroxene so as to generate calcium salt, magnesium salt and other solid particles, and carbon oxides and sulfides are adsorbed and sealed up for safekeeping.
Owner:CHANGAN UNIV
Thin structure of anti-pressure over-temperature protection element
ActiveCN103531402BPlay an anti-stress rolePromote meltingHeating/cooling contact switchesEmergency protective devicesAlloyTotal thickness
Owner:SHANGHAI CHANGYUAN WAYON CIRCUIT PROTECTION CO LTD
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